Mixed feeding device of metallurgical powder

Abstract

The invention discloses a mixed feeding device of metallurgical powder. The device is characterized in that the device comprises a receiving cylinder and injection cylinders. The receiving cylinder is a revolution body; ribs that are embedded inside the cylinder and are distributed circumferentially are arranged at an upper opening; a discharging port is formed at the axis position in the bottom of the receiving cylinder and a fusiform flow adjusting body is arranged at the discharging port; the flow adjusting body is connected with a support inside the receiving cylinder by a screw rod extending upwardly and is connected with a support inside a funnel by a screw rod extending downwardly; and the cross section area of the upper opening of the funnel is larger than that of the discharging port. At least two injection cylinders are arranged; and injection openings are formed in the bottoms of the injection cylinders and point at the axis of the receiving cylinder. According to the invention, powder flowing out of the discharging port is dispersed and then is gathered in the funnel, is mixed and then flows into a compression acupoint, so that diameter matching of powder particles becomes balanced and mixing can be carried out fully, so that consistency of the compressed finished products is improved.

Description

technical field [0001] The invention relates to a powder metallurgy production tool, in particular to a metallurgical powder mixing and feeding device. Background technique [0002] my country is a big industrial country. With the advancement of science and technology, my country's manufacturing industry is booming, the economy is becoming stronger and stronger, new technologies and materials are constantly emerging, and powder metallurgy materials are one of them. Powder metallurgy can make porous, semi-dense or fully dense parts, such as oil bearings, gears and other parts, which are widely used in various industries without cutting. It has unique chemical composition and mechanical and physical properties. Unobtainable by metalworking methods. The existing powder metallurgy production process generally prepares powder particles of suitable particle size first, then presses them into shape, and then sinters them to form parts with fixed shapes. The density and product per...

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Problems solved by technology

The existing powder metallurgy production process generally prepares powder particles of suitable particle size first, then presses them into shape, and then sinters them to form parts with fixed shapes. The density and product performance after sintering are directly related to the size of powder particles. The requirements of the products are different, and powder particles of different particle sizes need to be uniformly mixed in different proportions to achieve the desired effect. However, the smaller particles of these powders tend to deposit downward during the transfer process. Due to the small particle size of the powder, the existing equipment is very difficult. It is difficult to achieve uniform remixing in proportion, which affects the consistency of the output product, which still needs to be solved technically

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